Cheap Flights from Moncton to Seattle

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Flight deals from Moncton to Seattle

Looking for a cheap last-minute deal or the best return flight from Moncton to Seattle? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Moncton to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Moncton to Seattle flights are currently cheapest in December.

Moncton to Seattle: Flight information

The things to know before you go.
Cheapest flight found$1,504
Cheapest month to flyDecember

Finding cheap flights from Moncton to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Moncton to Seattle is $1,504. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Moncton to Seattle. But we found flights with one or more stops from $1,504.
As of May 2026, there are no flights flying from Moncton to Seattle.
The cheapest month to fly from Moncton to Seattle is usually December.
If you're flying from Moncton Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $1,504.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Moncton Airport to Seattle on Monday, 14 December 2026.
No airlines currently offer direct flights between Moncton Airport and Seattle. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 12°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Air Canada offers the cheapest flight tickets to Seattle.

Travelling from Greater Moncton International Airport (YQM) to Seattle: what you need to know

  • The timezone in Seattle is UTC-7. The city is four hours behind Moncton, where Greater Moncton International Airport is located.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to board your YQM to Seattle flight.

  • Travelling over a peak time like August? Public holidays and other popular seasons can lead to longer lines at security. Be extra cautious and get there up to four hours ahead of an international flight and two hours before domestic departures.

  • Travelling from central Moncton to YQM takes around 40 minutes by public transport. If you drive, ride-share or take a cab, you'll cover the 8 kilometres in 15 minutes or so, depending on traffic.

  • Want an easy start to your journey? Stay near YQM. Whether you have an early flight from Greater Moncton International Airport to Seattle or want to avoid feeling rushed, these hotels have you covered:

  • 56.76% of flights leaving from Greater Moncton International Airport touch down at their destination on schedule.

How to find the cheapest flights from Greater Moncton International Airport (YQM) to Seattle

  • The lowest price we've seen for a one-way Greater Moncton International Airport to Seattle flight is $382. The cheapest price for a return flight is $1,504. Bear in mind fares can change due to demand at the time of booking.

  • Booking early is often the key to scoring a cheap flight from YQM to Seattle. Flight prices rise as demand increases, so the closer you get to departure, the more you'll likely pay.

  • If you're flexible with your travel dates, make the most of the 'Whole month' tool. It'll show you the lowest price across every month when looking for a Greater Moncton International Airport to Seattle ticket.

  • Cut down on the time spent looking for cheap flights from YQM to Seattle by creating a Price Alert. We'll send you an email or notification on the app when a lower fare pops up.

  • Save on your flight from Greater Moncton International Airport to Seattle with the help of our filters. Select your preferred times, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) to central Seattle takes about 20 minutes to reach by car. The centre is roughly 23 kilometres away.

  • It takes around 55 minutes to get there using public transport.

  • If you have a late flight from Greater Moncton International Airport to Seattle, nothing beats the convenience of staying close to the terminal. Grab your suitcases from the carousel and then be showered and sleeping not long after at one of these accommodation options near SEA:

  • Travel at your own speed with a Seattle-Tacoma International Airport rental car. Book your wheels from Thrifty, Europcar or Budget and venture far and wide through Seattle and beyond.

  • For the lowest price, reserve your vehicle from Seattle-Tacoma International Airport around one week ahead of your flight from YQM to Seattle.

Lake Union Sea Plane Base Airport (LKE)

  • The centre of Seattle is located around 3 kilometres from Lake Union Sea Plane Base Airport (LKE). After your flight from Greater Moncton International Airport to Seattle has hit the runway and you've made your way through the terminal, the drive should take about 10 minutes.

  • If you're catching public transport, it'll take around 25 minutes.

  • Following your YQM to Seattle flight, unwind at a hotel close to LKE. These are some comfortable accommodation options that'll help you slip into relaxation mode:

Best time to go to Seattle

  • Travel to Seattle during the high season if you like a lively atmosphere, but remember that prices tend to be higher. Alternatively, book your flights from Greater Moncton International Airport to Seattle in the off-season when prices are cheaper and it's quieter.

  • Book a Greater Moncton International Airport to Seattle flight ticket with a departure in August if you're eager to experience the city during its warmest month. You can expect temperatures to range from 12ºC to 28ºC.

  • For cooler conditions, look for a cheap ticket from YQM to Seattle in February when temperatures average between -1ºC and 11ºC.

More about Seattle

  • Once you've booked your flight from Greater Moncton International Airport to Seattle, choose a hotel that puts you right where the action is. Make one of these options your base for exploring Seattle:

  • Every great journey has to include a little sightseeing. LMN Architects, Greyhound: Bus Station and Boeing Radiation Effects Lab are must-do's during your Seattle adventure.

Explore more of United States

  • Portland is just one of the many places in United States waiting to be discovered once you've seen the sights of Seattle. Around 241 kilometres away to the south, its top attractions include Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Around 370 kilometres east of Seattle, Spokane is another favourite stop in United States. No visit is complete without checking out Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.